Work-support



C. C. BLAKE. WORK SUPPORT. APPLICATION FILED NOV. 4. 19:5.

Patented Aug. 26, 1919.

2 SHEETSSHEET I.

I; E 2% a 'rl-n: COLUMBIA PLANOURAPN c0., WASHINGTON, n. c.

C. C. BLAKE. WORK SUPPORT. APPLICATION FILED NOV. 4. l9l5.

Patented Aug. 26,1919.

2 SHEETS-SHEET 2.

UNITED sTATEs PATENT o EicE.

CHARLES c. BLAKE, or BEooKLIN MASSACHUSETTS, ASSIGNOR To c. c. BLAKE,INCORPORATED, 013 BOSTON, MASSACHUSETTS, A CORPORATION or NEW YORK.

WORK-SUPPORT.

Brookline, in. the county of Norfolk and State of Massachusetts, haveinvented-a new and useful Improvement in Work-Supports,

of which the followingis a specification.

The present invention relates to work supports, and more particularly towork supports for use in automatic shoe machines.

In the automatic shoe machines which are used in the'manufacture of thewelt shoe devisedby me the-work is carried. upon a leader which is fedlongitudinally to transfer the point of operation of the tool around thework and which is automatically shifted laterally during its feedlongitudinally to maintain the edge of the work adjacent the operatingtool in the line of feed. It is highly desirable that the same leaderused in the earliest shoe bottoming operation on one shoe should be usedin the subsequent shoe bottoming operations on the same shoe.

' -As some of these machines operate before and others after theapplication of the toe box to the toe end of the insolehheretofore,

. it has beenconsidered impracticable :to employ the same leader in thevarious automatic'shoe bottomingmachines. The chief diflicultyencountered is that a leader con- 'structed for use in a shoe bottomingoperation prior to the application of the toe-box to the toe end of theinsole will cause the outseam to encroach on the inseam inthe outsolestitching operation. 1

The object of the present invention; is to provide means whereby thesame leader may be used in the automatic machines for per: formingoperations both prior and subses. quent to the application of thetoe-box to M the toe end of the insole. To the accomplishment of thisobject, and

such others as may hereinafter appear, the" I features of the inventionrelate to certain devices, combinationsjand arrangements off partshereinafter described and then set forth broadly and in detail in theappended claims, which possess advaiitages. readily apparent to ,thoseskilled in theart.

vention will be best understood from an linspection of the accompanyingdrawings the leader.

The various features of the present in Patented Am. 26, 1919.

I Application'filed November 4,1915. Serial No. 59,654.

illustrating-the best form of the invention at present known to theinventor, in which, Figure 11 is an elevation, partly in sec- 1 tion,of, the work mounted in position upon a leader; I

I Fig. 2 a diagrammatic plan illustrating the relation between the edgeof the last bottom andthe guiding flange on the leader;

and

3 is a plan 'ofthe jack'mounted upon In the illustrated upon the bottomof which an insole 6 is secured. Toithe edge face of theinsole 6. anupper 7, having the toe-box withinit, is lasted in accordance with themethod describedin the applicationfor Letters Patent of the UnitedStates filed by me April li,

1915, Serial No. 21,423. A M p In -order that the leader may properlyguide the shoe or the partsv therefor for the operation ofthe operatingtool or tools, in

p the automatic machine the inside face of the guiding flange, indicatedat 8 (Figs. 1 and 2) has a definite relation to the edge of the lasted fshoe. When thelast and insole are first: positioned on the leader theprojections of the edge of the last or insole at the-sides thereof uponthe plane of the leader coincide with the face 8. At the toeof the lastorinsole the projections ofthe edge of the last or insole upon the planeof the leader fall within the guiding flange. This variation is for theaccommodation of the toe-box which is applied to the toe end Of theinsole. during the lasting operation. When the upper 7, having thetoe-box within it, is laste'd, to the edge face of the insole,

in accordance with the method of lasting -practised by me, theprojections of the edge 0f the upper adjacent the edge face of theinsole .uponthe plane of the leader, will coincide with the inside face8 of the guidingflange throughout its length. 1 Statedin embodimentofthe in- A vent1on the lasted shoe, hereinafter called for conveniencethe f shoe, is mounted on a another way, the projections upon the planeof the leader of the outside edge of the toebox secured in positionagainst the toe end of the insole will coincide with the face 8 of theguiding flange at the toe of the leader. The shoe is mounted on aspindle 9 and a saddle 10. The spindle 9 is secured to a boss 11 (Fig.3) formed in a plate 12 carried by two vertical plates 13 rising from abase 14. The saddle 10 consists of a pad of yielding material mountedupon the upper end of a chambered post 15. The post 15 is mounted upon astandard 16 and is guided to slide vertically therein by a screw 17which is arranged to engage a slot 18 formed in the post 15. The saddle10 is normally held elevated by a coiled spring 19 which is interposedbetween the bottom of the standard 16 and the top chamber in the post15. To permit the saddle to be forced upwardly to jack the shoe the post15 carries a rack 20 which, when the saddle is under the influence ofthe spring 19, registers with an opening 21 formed in a worm 22. Thisworm is mounted in a housing 23 on a vertical shaft 24 j ournaled in thestandard 16, and is provided with a handle 25 by means of which theoperative may engage the worm with the rack 20 and force the saddle 10upwardly to jack the shoe. To permit the jack to accommodate differentsizes of shoes the standard 16 is mounted to slide in ways 26 formed onthe plates 13. The base 14: is provided with a frame 27 (Fig. 3)projecting laterally on both sides thereof. The frame 27 is providedwith a pair of runners 28 which extend downwardly to the plane of thebottom of the guiding flange 3.

In order to permit the last 5 to be originally positioned properly withrelation to the leader 2 the leader is provided with a pair ofbutton-hole slots (Fig. 1) which receive headed bolts 30 carried by thebase 14-, of the jack. WVith this construction the jack may be placedupon the leader by passing the heads of the bolts 30 through the largeends of the button-hole slots 29. The jack is then shifted on the leaderuntil the last is centrally located with relation to the guiding flangeon the leader. This movement of the jack brings the shanks of the boltswithin the small ends of the buttonhole slots 29. To clamp the jack tothe leader the ends of the shanks of the bolts are provided with pins 31which are engaged by the opposite ends of a leaf spring 32 arranged toembrace the shanks of the bolts. The spring is bowed to exert clampingpressure upon the bolts and thus clamp the jack to the leader by atriangular cam 33 I secured to a shaft 341- journaled in the .plates 13and actuated through a handle 35 (Fig.

3) carried by the shaft. The base 14 carries 65 a pair of pins 36 whichact as fulcrums for the leaf spring 32 during the bowing thereof.

The leader 2 is also provided with a cam face 37 (Fig. 1). When theleader is used in the automatic shoe machines which perform operationson the work before the application of the toe-box thereto this cam face37 operates to shift the tool transversely of the feed to accommodatefor the toe-box variation in the guiding flange of the leader. In theautomatic shoe machines which perform operations subsequent to theapplication of the toe-box to the shoe .the cam face 37 has no function.Consequently the guiding flange operates to transfer the point ofoperation of the tool at a uniform distance from the outside edge of thetoe-box in passing around the toe of the shoe. Therefore thisconstruction provides for the maintenance of a predetermined distancebetween the inseam and the outseam around the toe of the shoe a resultheretofore con sidered impracticable.

It Will be clear to those skilled in this art, and with the generalobjects of the present invention in View, that changes may be made inthe details of structure, the described and illustrated embodimentthereof being intended as an exploitation of its underlying essentials,the features whereof are definitely stated in their true scope in theclaims herewith.

lVhat is claimed as new, is

1. A work support, having, in combina tion, a support for a last, and aleader connected to the support provided with a guiding flange which isso arranged relatively to the last on the support that the projectionsof the edge of the last at the sides thereof upon the plane of theleader coincide with the guiding flange and the projections of the edgeof the last at the toe thereof upon the plane of the leader fall withinthe guiding flange, substantially as described.

2. A work support, having, in combination, a support for a lasted shoe,and a leader connected to the support provided with a guiding flangewhich is so arranged relatively to the lasted shoe on the support thatthe projections of the edge of the upper 15 adjacent the edge face ofthe insole upon the plane of the leader coincide with the guidingflange, substantially as described.

3. A work support, having, in combination, a support for a lasted shoe,and a leader connected to the support provided with a guiding flangewhich is so arranged relatively to the support for the lasted shoe thatthe projections of the outside edge of the toe-box positioned againstthe toe end of the 12 5 insole coincide with the guiding flange of theleader at the toe thereof, substantially as described.

1. A work support, having, in combination, a sole support, and a leaderconnected 1 to the support provided with a guiding ing flange, the areabetween the guiding flange which is so arranged relatively to flange andthe line through the projections 10 the sole on the support that theprojections inside the guiding flange equaling the cross of the edge ofthe sole at the sides thereof sectional area in the plane of the sole of9. upon the plane of the leader coincide with toe box positioned againstthe toe end of the guiding flange and the projections of the sole on thesupport.

the edge of the sole at the toe thereof upon the plane of the leaderfall within the guid- CHARLES C. BLAKE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

